linux-kernel - Re: [linux-sunxi] [PATCH 2/4] ARM: dts: sun8i: Add PWM channel 0 pinmux setting for A23/A33

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Date:	Fri, 18 Sep 2015 11:30:57 -0400
From:	Hans de Goede <hdegoede@...hat.com>
To:	Chen-Yu Tsai <wens@...e.org>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-sunxi@...glegroups.com
Subject: Re: [linux-sunxi] [PATCH 2/4] ARM: dts: sun8i: Add PWM channel 0
 pinmux setting for A23/A33

Hi,

On 09/18/2015 03:35 AM, Chen-Yu Tsai wrote:
> The PWM controller has 2 outputs, with one usable pin for each.
>
> Add a pinmux setting for the first channel. This is often used
> for backlight dimming on tablets.
>
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>
> ---
>   arch/arm/boot/dts/sun8i-a23-a33.dtsi | 7 +++++++
>   1 file changed, 7 insertions(+)
>
> diff --git a/arch/arm/boot/dts/sun8i-a23-a33.dtsi b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
> index e7054304018a..8f4db82084c5 100644
> --- a/arch/arm/boot/dts/sun8i-a23-a33.dtsi
> +++ b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
> @@ -412,6 +412,13 @@
>   				allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
>   			};
>
> +			pwm0_pins: pwm0 {

This should be "pwm0_pins_a: pwm0@0" so as to be consistent with the a10 / a20 dtsi
files.

Regards,

Hans

> +				allwinner,pins = "PH0";
> +				allwinner,function = "pwm0";
> +				allwinner,drive = <SUN4I_PINCTRL_10_MA>;
> +				allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
> +			};
> +
>   			i2c0_pins_a: i2c0@0 {
>   				allwinner,pins = "PH2", "PH3";
>   				allwinner,function = "i2c0";
>
--
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